Subsoil-plow.



C. DENNY suson How,

APPLICATION FILED AUG. 31| 19H5. L aene/C Feb, 25, NHG,

j 2 SHETS--SHEET l.

Y /2 l' L l C. DENNY.

SUBSOIL PLOW.

APPLlcMloN FILED AuG.32.'191s.

L, rammed Feb. 25, 19m.

2 SHEETS-SHEET 2.

SZW.

if. kan f4 mj entren sans [sanitr CHALM'ER DENNY, OF SORNTO, LLINOIS.

SUBSOIL-PLOW.

Application filed August 3l, 1918.

.Be it known that. I. Quanten DnNNY, a. citizen of the. United States,residing at Sorento, in the county of Bond and State of llinois, haveinvented new and useful Improvements in Subsoil-Plows, of which thefollowing` is a specification.

lhis invention relates to slib-soil plows and it consists in the novelfeatures hereinafter described and claimed.

An object of the invention is to provide aplow of the character statedwhich is of simple and durable structure and which is adapted to be usedfor breaking up the soil for a considerable distance below the normalsurface thereof.

With this object in view the plow comprises a wheel mounted body havingan engine located thereon and a frame mounted for movement verticallyupon said body. Means are provided for `raising and lowering the framewith relation to the body. Vertically disposed shafts are carried by theframe and the said shafts in turn are provided with` auger blades andcutting' elements. Means are provided. for rotating the shaftssimultaneously from the engine and the shafts at the opposite sides ofthe body and frame rotate in opposite direction whereby the soilengaging elements operate through the soil in opposite direction andconsequently any tendency to side draft or movement eliminated.

ln the accompanying' drawing:-

Figure 1 is a top plan view of the plow.

Fig. 2 isa side elevation of the saine.

Fig. 3 is a rear elevation of the same.

Fig. t is a detail vertical sectional View of the same.

Fig. 5 is a detail vertical sectional View, showing one of the worms 9and its coin neeted part in elevation.

The plow comprises a body 1 which is mounted upon wheels 2 in a usualmanner. An engine 3 is mounted upon the body 1 and is operativelyconnected with a shaft Je journaled -on the said body by means of a beltVertically disposed rack bars (i are mounted at the corner portions ,ofthe body 1 and a frame 7 is mounted upon the body and provided with`:guides S adapted to move along the rack bars \Vorms 9 are locatedbetween the guides S andreslidably nount ed on verl ically disposed lshafts l() journaled upon the body -adjacent the rack bars G.

Specification of Letters Patent.

Patented Feb. 25., 1919.

serial No. 252,160.

The shafts lO may be. provided at their upper ends with crank handlesll. While the worms 9 are slidably mounted upon the shafts 10 they areconstrained to rotate with the shafts and the worms mesh with the teethof the rack bars'l. Beveled pinions 12 are mounted at the lower end ofthe shafts 10 and mesh with similar pinions 13 mounted upon the endportions of the shafts let and the said shafts extend transversely underthe body 1 and across the same.

Consequently it will be seen that by rotating either of the shafts 10the worms 9 at the opposite sides of the machine will be rotated and asthey nieve through the spaces between the teeth of the rack bars G the'frame 7 will be raised or lowered.

A vertically disposed shaft 1 5 is journaled for rotation at the forwardportion of the body and a pulley 1G is mounted on the said shaft 15. Avpulley 17 is mounted upon the shaft et hereinbefore described and a belt18 is trained around the pulleys 1G and 17. Therefore means are providedfor rotatinga the shaft l5 from the shaft 4. A yoke 19 is 'slidablymounted on the shaft 15 and a gear wheel 20 is journaled for.rotationupon the said yoke. The shaft 15 passes through the center of the `gearwheel 2O and while the gear wheel may slide upon the said shaft it isconstrained to rotate in unison with the same. Shafts Q1 are journaledfor rotation in the frame 7 and carry at their inner ends gear wheels 22which mesh with the teeth of the gear wheel 20. Therefore it will beseen that when the wheel 20 is rotated the shafts 2l' at the oppositesides of the machine will be rotated in opposite directions.

Vertieally disposed shafts 23 are jourwled for rotation in the frame 7and the shafts are preferably arranged in four sets. there being fourmembers in each set. 'l`he members of the sets are arranged in rowslwhich extend transversehY across the machine and the shafts in the firstrow are comparatively short. while those in the succeeding' rowsgradually increase in length.

The shafts 23 carry auger blades 24' and each shaft 23 is provided atits lower end with a' cutter 25. Bearings 2.6 are mounted upon the frame7 and stub shafts 97 are joui-n 'ed in the bearings 2G. The stub shafts27 are provided at. their ends with beveled gear wheels 28 which meshwith 1the teeth of similar wheels 29 mounted at the upper ends-'of theshafts 23. Sprocket wheels 30 are mounted upon the shafts 21 andsprocket wheels 3l are mounted upon the stubs shafts 27. Chains 32 aretrained around the sprocket vwheels 3() and 31 and engage the sides ofthe intermediate sprocket wheel 3l. Consequently it will be Seen thatwhen the shafts 2l are rotated rotai'y movement is transmitted by' thechains and Stub shafts 27 and intermeshing gear wheels 28 and 29 to theshafts 23.

When the machine is positioned over the particular area which is tov be.plowed or tilled the frame 7 is lowered and at the saine time the shafts23 are i'otatedfwhereby the blades 24 and cutters 25 penetrate the soiland cut or break the same. In view of the fact that the shafts 23 are ofdifferent length in the different sets of shafts'all the soil workingelements do not enter the soil simultaneously, consequently some of thesoil working elements will operate in the soil at a greater depth thanothers Aand this will assure that the soil is properly broken up orworked at the expenditure of a minimum amount of power'or force. `l

From the foregoing description ctaken in ,onjunctionwith theaccompanying drawmg =it will be seen that `a soil 'tilling or plow-Uvingmachine of simple and durable structure is provided and that thesame may be used .to @advantage and economically for effect- Iuallybreaking up sjoil preparatory to plant` 'in or othernses.

y sub-soil machine plow can be used on all k-inJds of soil and enablesthe soil to be stirred and loosened to a considerable 4depth and to keepmoisture in the ground,

andl is especially valuablev for these purposes in irrigated districts;The machine can be also used in grading roads as it enables the soilrtobe readily cut up in fine shape for. shoveling or scraping.

' In practice, a suitable clutch is 'provided on the shaft l to enablethemachine to be thrown in or out of gear.,

Having described the invention what'lis claimed is l. Ina machine Toftlieclass described, a main body, a frame mounted on the body forvertical movement, upright shafts cai-- i'ied bv and mounted forrotation in said frame, said shafts having soil engaging elements attheir lower portions, transverse shafts mounted for rotation in theframe land geared to the upright shafts, a verticall guiding shaftmounted in said frame, a gear on said vertical 'shaft and connectedthereto for rotation therewith and vertical movement thereon, means tocause said gear to move vertically with the frame, and means to drivethe transverse shafts, said means gear engaged with the first saidframe, A

vertinc'ally with, the frame, means to drive l the transverse shafts,said means including a gear engaged with the irst'named gear, and anengine mounted on the body and con--` nected to said vertical shaft sothat said verticaLshaft is driven bythe engine.

3. A tiller comprising'a body, anenginemounted thereon, a frame movablymounted on the body, means for raising and lowering the frame, shaftsjournaled .upon'the frame,

said shafts being arranged in sets' and the sets of shafts being ofdifferent lengths, soil engaging' elements carried by the shafts andmeans for' rotating the shafts from the engine. In testimony whereof Iaiiix my signature.' CHALMER DENNY.

